[An effective case of gemcitabine therapy with post-operative peritoneal recurrence of intrahepatic cholangiocarcinoma].

The patient was a 53-year-old man who had undergone left hepatectomy due to intrahepatic cholangiocarcinoma in August 2007. Pathologically, the tumor was diagnosed as a cholangiocellular carcinoma (T2, N0, M0, Stage II). Ascites appeared about one year after surgery and control was difficult using diuretics. Since abdominal CT revealed peritoneal recurrence with massive ascites, we conducted chemotherapy using gemcitabine (GEM) in September 2008. In the outpatient setting, GEM at a dose of 1, 000 mg/body was administered once a week with a 1-week rest as 1 course. The response was assessed as a complete response (CR) because abdominal CT after 7 courses of chemotherapy showed the disappearance of both ascites and the peritoneal nodules. An adverse effect for GEM was grade 3 anemia, but we could continue the chemotherapy until September 2009. At present, CR has been observed, and one year and three months have passed since the peritoneal reccurrence.